Welcome Customer !

Membership

Help

Shanghai Tangma Pump Valve Co., Ltd
Custom manufacturer

Main Products:

cep-online>Article

Shanghai Tangma Pump Valve Co., Ltd

  • E-mail

    709616359@QQ.com

  • Phone

    13636601493

  • Address

    No. 2353 Linji Road, Tinglin Town, Jinshan District, Shanghai

Contact Now
What are the classifications of pneumatic butterfly valves?
Date: 2021-11-15Read: 10

Classification:

Pneumatic control butterfly valveIt is a type of valve that rotates around a fixed axis perpendicular to the channel, consisting of a piston type double acting or single acting (spring reset type) pneumatic actuator and a butterfly valve. It belongs to the category of high-performance rotary regulating or cut-off valves, equipped with electric, pneumatic valve positioners or solenoid valves, air filter pressure reducers, limit switches (valve position feedback devices), which can achieve proportional adjustment and two position cut-off control of the fluid medium in the process pipeline, thereby achieving automatic control of parameters such as flow rate, pressure, temperature, and liquid level of the fluid medium.

Pneumatic clamp butterfly valveThe structure is novel, and the valve body is designed to meet the short distance clamping structure formed by narrow pipeline space. It has zero external leakage and internal leakage meets national standards.
Pneumatic rubber lined butterfly valve, with connection methods including flanges, clamps, and sealing liners made of nitrile rubber, ethylene propylene rubber, heat-resistant ethylene propylene rubber, natural rubber, chloroprene rubber, fluororubber, and polytetrafluoroethylene, with more reasonable choices based on the chemical properties of the medium.
Pneumatic fluorine lined butterfly valveThe anti-corrosion fluorine lined butterfly valve adopts a two-piece valve body combination, with the valve seat and valve body liner integrated. When the valve is in operation, only the full plastic valve seat and the lined plastic butterfly plate are in contact with the medium. The product can withstand any medium corrosion except for molten alkali metals and elemental fluorine. The D71F46 valve stem and butterfly plate (forged) are integrated, and the surface is uniformly coated with a layer of FEP. The inner surface of the valve body channel is smooth, the fluid resistance is small, the CV value is high, the flow capacity is strong, and the torque is moderate. The four stage sealing structure is adopted, and the temperature resistant and anti-aging SI rubber elastic gasket valve seat is equipped outside the sealing surface, * to achieve zero leakage of the medium.
Pneumatic ventilation butterfly valveThe product features a narrow gap between the valve plate and seat, making it suitable for use in environments with poor air circulation.
pneumaticExpansion Butterfly ValveIts main features are as follows: innovative design, reasonable structure, light weight, easy operation, and rapid opening and closing; In addition to regulating and intercepting the flow, compensating for the thermal expansion and contraction caused by pipeline temperature differences, the telescopic butterfly valve can also provide convenience for valve installation, replacement, and maintenance. The sealing part can be adjusted and replaced, and the sealing performance is reliable.

Pneumatic flange butterfly valveThe pneumatic flange butterfly valve is composed of a rubber sealed butterfly valve, a carbon steel or stainless steel valve plate, and a valve stem. Suitable for regulating flow and intercepting media on water supply and drainage, gas pipelines with temperatures ≤ 80-120 ℃, such as food, chemical, petroleum, electricity, textile, papermaking, etc.